05000298/FIN-2015003-07
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Technical Specification 3.3.6.1, Primary Containment Isolation Instrumentation, Action A.1, requires that inoperable high main steam line flow isolation channel(s) be placed in trip in 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. Contrary to the above, from November 21, 2014, to February 19, 2015, the licensee failed to place three inoperable Division II high main steam line flow isolation channels in trip within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, because the licensee failed to properly implement the requirements of TSTF-493, Clarify Application of Setpoint Methodology for Limiting Safety System Settings, for main steam differential pressure indicating switches. The licensee recalibrated the main steam differential pressure indicating switches in question and re-stored the setpoints to the pre TSTF-493 values. The performance deficiency was more than minor, and therefore a finding, because it was associated with the design control attribute of the Barrier Integrity Cornerstone, and affected the associated cornerstone objective to ensure the containment functionality was maintained. Using Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power, dated June 19, 2012, inspectors determined that the finding screened as having very low safety significance (Green) because it did not represent an actual: (1) open pathway in the physical integrity of reactor containment (valves, airlocks, etc.) containment isolation system (logic and instrumentation), and heat removal components; and (2) reduction in function of hydrogen igniters in the reactor containment. The license entered this deficiency into the corrective action program as Condition Report CR-CNS-2015-03315. |
| Site: | Cooper  |
|---|---|
| Report | IR 05000298/2015003 Section 4OA7 |
| Date counted | Sep 30, 2015 (2015Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | C Henderson D Reinert G Warnick J Braisted J Nance J O'Donnell L Carson M Hayes M Phalen P Elkmann P Hernandez |
| Violation of: | Technical Specification |
| INPO aspect | |
| ' | |
Finding - Cooper - IR 05000298/2015003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cooper) @ 2015Q3
Self-Identified List (Cooper)
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